The Study On Spatial Structure Characteristics Of Urumqi Metropolitan

The spatial structure of metropolitan directly restricts the overall function of the play, only a coordinated and complementary, orderly spatial structure, it may give full play to functions of the system. Based on the calculation of a large number of statistical data, build their self-organization theory of the spectral model, spatial structure of the fractal model and the hierarchical order model. Empirical analysis in-depth of spatial structure of Urumqi metropolitan, and recommendations for structural optimization were made. The paper ultimately concluded the following main conclusions:(1) The urbanization level of Urumqi Metropolitan is divided into four relatively independent spatial units: the highest level of urbanization is the core area of Wu Chang, followed by the western region, eastern region, the level of urbanization in the southern region is relatively low, compared with the actual match.(2) The phase space has fractal characteristics with time of Urumqi Metropolitan. According to the spectral index we can see, the urbanization has fractal characteristics with time, showing the broad 1 / f noise, indicating that the self-organized criticality of the urbanization process. Hurst index value indicates that the process of urbanization with its anti-persistence, and the system may imply a periodic law.(3) The real space of Urumqi Metropolitan has fractal characteristics, and the system of self-organization in spatial structure evolution has optimized trend. The aggregation dimensional as the calculation center of Urumqi shows that the density is degradation from the center to the surrounding for the self-organization evolution. The spatial correlation dimension descript that the distribution of towns within the system is uneven. The cattle crow dimension closed to 1 ratio, indicates that the transport network is relatively developed between 13 counties within the metropolitan. the accessibility transport of the system is better. It is very useful for the metropolitan coordinated development. (4) About the ordering space, the cities within Urumqi metropolitan area are the first distribution system, and the population distribution is extremely uneven. The urban distribution is more dispersed, and the middle rank of the city is less. The monopoly of the first city is strong. The system is still immature, and its sequence structure is not very complete.